<template>
  <!-- 新增部门的弹层 -->
  <el-dialog :title="showTitle" :visible="showDialog" @close="handleCloseDialog" @open="handleOpen">
    <!-- 表单组件  el-form   label-width设置label的宽度   -->
    <!-- 匿名插槽 -->
    <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
          <el-option v-for="item in employeeList" :key="item.id" :value="item.username" />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
    </el-form>
    <!-- el-dialog有专门放置底部操作栏的 插槽  具名插槽 -->
    <div slot="footer">
      <el-button type="primary" size="small" @click="clickSubmit">确定</el-button>
      <el-button size="small" @click="handleCloseDialog">取消</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { reqGetEmployeeSimple } from '@/api/employee'
import { reqAddDepartments, reqGetDepartDetail, reqUpdateDepartments } from '@/api/departments'
export default {
  // 需要传入一个props变量来控制 显示或者隐藏
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    nodeData: {
      type: Object,
      required: true
    },
    list: {
      type: Array,
      required: true
    }
  },
  data() {
    const checkNameRepeat = (rule, value, callback) => {
      let arr = []
      if (this.nodeData.abc) {
        if (this.nodeData.name === value) {
          callback()
          return
        }
        arr = this.list.filter(item => item.pid === this.nodeData.pid)
      } else {
        // console.log(this.nodeData.id)
        arr = this.list.filter(item => item.pid === this.nodeData.id)
      }
      const res = arr.some(item => item.name === value)
      res ? callback(new Error('部门名称重复了')) : callback()
    }
    const checkCodeRepeat = (rule, value, callback) => {
      if (this.nodeData.abc && this.nodeData.code === value) {
        callback()
        return
      }
      const res = this.list.some(item => item.code === value)
      res ? callback(new Error('部门编码不能与已有的编码重复')) : callback()
    }
    return {
      form: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门管理者
        introduce: '' // 部门介绍
      },
      employeeList: [],
      // 定义校验规则
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: ['blur', 'change'] },
          { validator: checkNameRepeat, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: ['blur', 'change'] },
          { validator: checkCodeRepeat, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: ['blur', 'change'] }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: ['blur', 'change'] }
        ]
      }
    }
  },
  computed: {
    showTitle() {
      return this.nodeData.abc ? '编辑部门' : '新增部门'
    }
  },
  methods: {
    handleCloseDialog() {
      this.$emit('update:showDialog', false)

      this.$refs.deptForm.resetFields()
    },
    async handleOpen() {
      if (this.nodeData.abc) {
        this.getDepartDetail()
      } else {
        const res = await reqGetEmployeeSimple()
        // console.log(res)
        this.employeeList = res.data
      }
    },
    clickSubmit() {
      this.$refs.deptForm.validate(async valid => {
        if (!valid) return
        if (this.nodeData.abc) {
          await reqUpdateDepartments(this.form)
        } else {
          await reqAddDepartments({ ...this.form, pid: this.nodeData.id })
        }
        this.$message.success('操作成功')
        this.handleCloseDialog()
        this.$emit('add-depts')
      })
    },
    async getDepartDetail() {
      const res = await reqGetDepartDetail(this.nodeData.id)
      this.form = res.data
      // console.log(res)
    }
  }
}
</script>
